Global Patent Index - EP 1802062 A1

EP 1802062 A1 20070627 - Decision feedback equalization with composite trellis slicer

Title (en)

Decision feedback equalization with composite trellis slicer

Title (de)

Entscheidungsrückgekoppelte Entzerrung mit zusammengesetztem Trellis-Slicer

Title (fr)

Egalisation de retour de décision à l`aide d'un filtre limiteur de treillis composite

Publication

EP 1802062 A1 20070627 (EN)

Application

EP 06256354 A 20061213

Priority

  • US 75262005 P 20051220
  • US 42560206 A 20060621

Abstract (en)

A decision feedback equalizer is configured to equalize an input signal to generate a recovered output signal. Linear feed-forward filter circuitry is configured to provide a linearly filtered output signal based on the input signal. Composite trellis decoder circuitry configured to process a combined signal that is based on a combination of at least the linearly feed-forward filtered output signal and on output of linear or non-linear feedback filter circuitry, in accordance with state metrics generated by processing a composite trellis diagram relative to the combined signal, to provide a trellis-decoded output signal as input to the linear or non-linear feedback filter circuitry. The composite trellis decoder circuitry is further configured to provide a particular phase output of the combined signal, based on the state metrics, as the decoded output signal.

IPC 8 full level

H04L 25/03 (2006.01); H04L 1/00 (2006.01); H04L 27/38 (2006.01)

CPC (source: EP KR US)

H04B 7/005 (2013.01 - KR); H04L 25/03057 (2013.01 - EP US); H04L 25/03267 (2013.01 - EP US); H04L 2025/0349 (2013.01 - EP US)

Citation (applicant)

US 5974091 A 19991026 - HUFF RONALD J [US]

Citation (search report)

Designated contracting state (EPC)

DE FR GB NL

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

EP 1802062 A1 20070627; KR 20070065796 A 20070625; SG 133526 A1 20070730; US 2007140329 A1 20070621; US 7680180 B2 20100316

DOCDB simple family (application)

EP 06256354 A 20061213; KR 20060126914 A 20061213; SG 2006086839 A 20061213; US 42560206 A 20060621